TP-Link Archer MR200 V1 Repeat 2.4G and 5G and SIM card


Recently I rescue this old router from a drawer and I was able to install OpenWrt. That was awesome!

This is my current software version:
Firmware Version
OpenWrt 19.07.3 r11063-85e04e9f46 / LuCI openwrt-19.07 branch git-20.136.49537-fb2f363

Kernel Version

Right now I'm able to repeat my house WiFi signal. But only 2.4G signal. I know that this device is able to work with multiple signals, 2.4G and 5G at the same time, but I don't know how to configure multiple signal repetitions.

I tried the Bridge option too, but I'm not sure why it didn't work. Do you know if it's needed certain configuration in the main house router before configure the bridge on OpenWrt?

Also, I need help configuring the SIM card slot, because all the tutorials I found are ready to configure USB slots and no one of those specifies how to work with an integrated SIM card slot.

I will continue investigating how to set up all this configuration, but any help you can provide me will be more than welcome.

Thank you in advance.